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Preparation process of metal wear-resistant alloy flange

A wear-resistant alloy and preparation technology, applied in the field of flange manufacturing, can solve the problems of inconvenient handling and transportation, heavy flange weight, poor wear resistance, etc., to achieve easy handling and transportation, reduce residual stress and brittleness, high resistance The effect of grinding

Inactive Publication Date: 2021-02-09
湖北恩腾机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a preparation process of metal wear-resistant alloy flanges. The technical problem to be solved by the present invention is: the traditional flanges are not only poor in wear resistance, but also To reduce the impact of wear on the use of the flange, a thicker inner wall is generally provided, which not only requires higher material costs, but also casts a heavy flange, which is inconvenient for handling and transportation.

Method used

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  • Preparation process of metal wear-resistant alloy flange

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, produce metal wear-resistant alloy flange according to the following specific steps:

[0027] S1. Raw material preparation:

[0028] Casting raw material preparation;

[0029] Carbon 0.8-1.2%, silicon 0.6-0.8%, chromium 18-22%, manganese 2.2-3.2%, vanadium 0.2-0.6%, phosphorus 0.01-0.03%, nickel 0.4-0.8%, molybdenum 0.2-0.5%, nitrogen 0.2% -0.4% and zinc 0.06-0.08%, the balance is copper, iron and unavoidable impurities.

[0030] Core material preparation;

[0031] Carbon fiber 5%, thermosetting resin 70%.

[0032] S2. Bottom shell prefabrication of blank parts:

[0033] Mix the weighed casting raw materials and put them into a furnace with a temperature of 1450-1500°C for alloy melting. At the same time, select a flange bottom shell mold of a suitable size and preheat it after cleaning, and put it in the flange mold A layer of mesh traveler, when the temperature in the furnace reaches 1500-1520 ℃, the solution is sampled for spectral analysis, after ...

Embodiment 2

[0044] Embodiment 2, produce metal wear-resistant alloy flange according to the following specific steps:

[0045] S1. Raw material preparation:

[0046] Casting raw material preparation;

[0047] Carbon 0.8-1.2%, silicon 0.6-0.8%, chromium 18-22%, manganese 2.2-3.2%, vanadium 0.2-0.6%, phosphorus 0.01-0.03%, nickel 0.4-0.8%, molybdenum 0.2-0.5%, nitrogen 0.2% -0.4% and zinc 0.06-0.08%, the balance is copper, iron and unavoidable impurities.

[0048] Core material preparation;

[0049] Carbon fiber 25%, thermosetting resin 55%.

[0050] S2. Bottom shell prefabrication of blank parts:

[0051] Mix the weighed casting raw materials and put them into a furnace with a temperature of 1450-1500°C for alloy melting. At the same time, select a flange bottom shell mold of a suitable size and preheat it after cleaning, and put it in the flange mold A layer of mesh traveler, when the temperature in the furnace reaches 1500-1520 ℃, the solution is sampled for spectral analysis, after p...

Embodiment 3

[0062] Embodiment 3, produce metal wear-resistant alloy flange according to the following specific steps:

[0063] A preparation process of a metal wear-resistant alloy flange, comprising the following steps:

[0064] S1. Raw material preparation:

[0065] Casting raw material preparation;

[0066] Carbon 0.8-1.2%, silicon 0.6-0.8%, chromium 18-22%, manganese 2.2-3.2%, vanadium 0.2-0.6%, phosphorus 0.01-0.03%, nickel 0.4-0.8%, molybdenum 0.2-0.5%, nitrogen 0.2% -0.4% and zinc 0.06-0.08%, the balance is copper, iron and unavoidable impurities.

[0067] Core material preparation;

[0068] 45% carbon fiber, 45% thermosetting resin.

[0069] S2. Bottom shell prefabrication of blank parts:

[0070] Mix the weighed casting raw materials and put them into a furnace with a temperature of 1450-1500°C for alloy melting. At the same time, select a flange bottom shell mold of a suitable size and preheat it after cleaning, and put it in the flange mold A layer of mesh traveler, when ...

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Abstract

The invention discloses a preparation process of a metal wear-resistant alloy flange, and particularly relates to the technical field of flange manufacturing. The preparation process comprises the following steps of raw material preparation and casting raw material preparation, specifically, raw materials comprise 0.8-1.2% of carbon, 0.6-0.8% of silicon, 18-22% of chromium, 2.2-3.2% of manganese,0.2-0.6% of vanadium, 0.01-0.03% of phosphorus, 0.4-0.8% of nickel, 0.2-0.5% of molybdenum, 0.2-0.4% of nitrogen, 0.06-0.08% of zinc and the balance copper, iron and inevitable impurities. According to the preparation process, an inner core layer and a high-chromium cast iron shell are arranged, so that the weight of the flange manufactured through the preparation process can be obviously reducedwithin a certain range on the premise that the hardness and the strength of the flange are not affected, moreover, carbon fibers can be selected from some leftover materials in a carbon fiber production workshop, and the material cost is low; and compared with a traditional metal flange preparation method at present, the flange prepared through the preparation process is formed by combining the high-chromium cast iron shell and the inner core layer, so that the flange has the advantages of being high in strength, toughness and wear resistance, low in manufacturing cost, small in weight and convenient to carry and transport.

Description

technical field [0001] The invention relates to the technical field of flange manufacturing, and more specifically, the invention relates to a preparation process of a metal wear-resistant alloy flange. Background technique [0002] Flanges, also known as flange flanges or flanges, are parts that connect shafts to shafts and can be used to connect pipe ends. However, traditional flanges are generally cast from ordinary carbon steel. Not only is the wear resistance poor during use, but in order to reduce the impact of wear on the use of the flange, a thicker inner wall is generally provided, which not only requires higher material costs, but also casts a heavy flange, which is inconvenient Handling and transportation, therefore, require a lightweight metal wear-resistant alloy flange preparation process to solve the above problems. Contents of the invention [0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a preparat...

Claims

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Application Information

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IPC IPC(8): B22D19/08B22C9/24C22C37/08C08L101/00C08K7/06
CPCB22C9/24B22D19/08C08K7/06C22C37/08C08L101/00
Inventor 毛德春王文春
Owner 湖北恩腾机械有限公司
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